X-Git-Url: https://gitweb.fperrin.net/?a=blobdiff_plain;f=tim%2Fprune%2Fgui%2Fprofile%2FAltitudeData.java;h=9c19862166b2421b4cdaab9d102a75b5eb26dad6;hb=4d5796d02a15808311c09448d79e6e7d1de9d636;hp=90130cc19a1f0985e2655da2c55f36ac34cc7305;hpb=c0387c124840c9407e040600fda88f3c3e8f6aa6;p=GpsPrune.git

diff --git a/tim/prune/gui/profile/AltitudeData.java b/tim/prune/gui/profile/AltitudeData.java
index 90130cc..9c19862 100644
--- a/tim/prune/gui/profile/AltitudeData.java
+++ b/tim/prune/gui/profile/AltitudeData.java
@@ -1,19 +1,15 @@
 package tim.prune.gui.profile;
 
 import tim.prune.I18nManager;
-import tim.prune.data.Altitude;
 import tim.prune.data.DataPoint;
 import tim.prune.data.Track;
+import tim.prune.data.UnitSet;
 
 /**
  * Class to provide a source of altitude data for the profile chart
  */
 public class AltitudeData extends ProfileData
 {
-	/** Altitude format for values */
-	private Altitude.Format _altitudeFormat = Altitude.Format.NO_FORMAT;
-
-
 	/**
 	 * Constructor
 	 * @param inTrack track object
@@ -25,32 +21,36 @@ public class AltitudeData extends ProfileData
 	/**
 	 * Get the data and populate the instance arrays
 	 */
-	public void init()
+	public void init(UnitSet inUnitSet)
 	{
+		setUnitSet(inUnitSet);
 		initArrays();
 		_hasData = false;
-		_altitudeFormat = Altitude.Format.NO_FORMAT;
-		if (_track != null) {
+		// multiplication factor for unit conversion
+		final double multFactor = _unitSet.getAltitudeUnit().getMultFactorFromStd();
+		if (_track != null)
+		{
 			for (int i=0; i<_track.getNumPoints(); i++)
 			{
-				DataPoint point = _track.getPoint(i);
-				if (point != null && point.hasAltitude())
+				try
 				{
-					// Point has an altitude - if it's the first one, use its format
-					if (_altitudeFormat == Altitude.Format.NO_FORMAT)
+					DataPoint point = _track.getPoint(i);
+					if (point != null && point.hasAltitude())
 					{
-						_altitudeFormat = point.getAltitude().getFormat();
-						_minValue = _maxValue = point.getAltitude().getValue();
-					}
-					// Store the value and maintain max and min values
-					double value = point.getAltitude().getValue(_altitudeFormat);
-					_pointValues[i] = value;
-					if (value < _minValue) {_minValue = value;}
-					if (value > _maxValue) {_maxValue = value;}
+						// Point has an altitude - store value and maintain max and min values
+						double value = point.getAltitude().getMetricValue() * multFactor;
+						_pointValues[i] = value;
+						if (value < _minValue || !_hasData) {_minValue = value;}
+						if (value > _maxValue || !_hasData) {_maxValue = value;}
 
-					_hasData = true;
-					_pointHasData[i] = true;
+						_hasData = true;
+						_pointHasData[i] = true;
+					}
+					else _pointHasData[i] = false;
 				}
+				catch (ArrayIndexOutOfBoundsException obe)
+				{} // must be due to the track size changing during calculation
+				   // assume that a redraw will be triggered
 			}
 		}
 	}
@@ -61,7 +61,7 @@ public class AltitudeData extends ProfileData
 	public String getLabel()
 	{
 		return I18nManager.getText("fieldname.altitude") + " ("
-			+ I18nManager.getText(_altitudeFormat==Altitude.Format.FEET?"units.feet.short":"units.metres.short")
+			+ I18nManager.getText(_unitSet.getAltitudeUnit().getShortnameKey())
 			+ ")";
 	}